$ git clone -n https://git.cclinux.org/stage/rpms/xapian-core.git /var/lib/mock/dist-circle8-build-44143-9471/root/chroot_tmpdir/scmroot/xapian-core
Cloning into '/var/lib/mock/dist-circle8-build-44143-9471/root/chroot_tmpdir/scmroot/xapian-core'...
$ git reset --hard b0df36153855c1aea78ab6889cb3e2d5248572bf
HEAD is now at b0df361 import xapian-core-1.4.18-3.el8